Scraper chain jumping protection device

Abstract

The utility model discloses a scraper chain jumping protection device, and relates to the technical field of scraper chain jumping, the scraper chain jumping protection device comprises a support, one end of the support is provided with a movement mechanism, the top of the movement mechanism is provided with a fixing rod, and the movement mechanism comprises an infrared alarm. A round rod and a moving rod move at the same time through movement of a rotating plate, when the moving rod moves, a gear and a sleeve can rotate, due to the fact that the sleeve is in threaded connection with a threaded rod, the threaded rod moves through rotation of the sleeve, the threaded rod can enter the infrared alarm, and the infrared alarm is prevented from falling off; and the round rod can move to be in contact with the other swing rod and can be combined with the other swing rod when rotating, so that the stability is improved during touch in subsequent use, the infrared alarm can be stably positioned near the scraper, and the inspection frequency of inspection personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper chain skipping, in particular to a scraper chain skipping protection device. Background Art

[0002] Scrapers are transport machines used in coal mining operations. They are primarily used for transporting coal within the mining face and along the mining area, but can also be used in coal lanes and semi-coal-rock tunnels. Scrapers in coal washing plants are often fully enclosed. Inspection personnel can monitor the scraper's operating status through observation ports on the machine body. Furthermore, the scraper's internal lighting and operating conditions are closely monitored. Failure to promptly detect a chain tripping could result in significant equipment damage.

[0003] For example, patent application number CN201420507316.5, the utility model discloses a scraper chain breakage and chain jumping protection device, the utility model has the characteristics of high detection accuracy and strong reliability, and is particularly suitable for scrapers with fast scraper movement speed or small scraper spacing. When in use, the scraper mostly adopts a fully enclosed structure, and the inspection personnel can only check the scraper machine's operating status through the observation port of the machine body, and the light and working conditions inside the scraper are responsible. If the scraper machine chain jumping is not discovered in time, it will cause serious equipment damage.

[0004] For example, patent application number CN202021942239.8, the utility model discloses a new chain breaking and chain jumping protection device for a scraper. The utility model symmetrically arranges actuators above the two chains of the scraper. The actuators are lifted and lowered reciprocatingly with the movement of the coal scraper rods, and the motion state of the actuators is sent to the control box through two proximity switches. The chain condition of the scraper is judged in turn and in a timely manner, and a judgment can be made at the first time when the scraper breaks or jumps the chain. The judgment is accurate and timely, avoiding major electromechanical accidents, reducing maintenance costs, and improving production efficiency. When in use, the scraper mostly adopts a fully enclosed structure. The inspection personnel can intelligently check the operating status of the scraper through the observation port of the fuselage. The light and working conditions inside the scraper are responsible. If the scraper chain jumps are not discovered in time, it will cause major equipment damage. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a scraper chain jump protection device, which solves the problem that most scrapers in coal washing plants adopt a fully enclosed structure, and inspection personnel can only check the operating status of the scraper through the observation port on the machine body. The light and working conditions inside the scraper are responsible. If the scraper chain jump is not discovered in time, it will cause serious equipment damage.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a scraper chain jump protection device includes a support bracket, one end of the support bracket is provided with a motion mechanism, and the top of the motion mechanism is provided with a fixing rod.

[0007] The movement mechanism includes an infrared alarm, and swing rods are provided on both sides of the infrared alarm, and the swing rods are in contact with the infrared alarm, a round rod is provided on one side of the infrared alarm, a ring is provided on the outer side of one end of the round rod, and the ring is movably connected to the round rod, a cross rod is provided on one side of the ring, and a vertical rod is provided at the end of the cross rod away from the ring, a movement rod is provided on the top of the vertical rod, and the movement rod is fixedly connected to the cross rod through the vertical rod, and a gear is provided below the movement rod, the number of the gears is two, and a threaded rod is provided on one side of each gear, one end of the threaded rod extends to the interior of the infrared alarm and is in contact with the infrared alarm, and a thread is provided on the surface of one end of the round rod.

[0008] Preferably, the swing arm is movably connected to the support bracket via a hinge, and a rack is provided above each of the gears, and the rack is meshed with the gear.

[0009] Preferably, the rack rail is fixedly connected to the motion rod, there are two swing rods, and a limiting rod is provided between the two swing rods.

[0010] Preferably, one end of the limiting rod is in contact with the infrared alarm, and the other end of the limiting rod is fixedly connected to the supporting bracket.

[0011] Preferably, a sleeve is provided on one side of each of the gears, the sleeve is threadedly connected to the threaded rod, and a sliding rod is provided at the bottom of one end of the threaded rod.

[0012] Preferably, the bottom end of the sliding rod is movably connected to the swing rod, and a support rod is provided on the other side of the gear.

[0013] Preferably, a rotating plate is fixedly provided on one end of the round rod, and the rotating plate is in contact with the circular ring.

[0014] Beneficial effects

[0015] The utility model provides a chain-jump protection device for a scraper conveyor. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The scraper chain skipping protection device allows the round rod and the moving rod to move simultaneously through the movement of the rotating plate. When the moving rod moves, the gear and the sleeve will rotate. Since the sleeve is threadedly connected to the threaded rod, the threaded rod is moved by the rotation of the sleeve, and can enter the interior of the infrared alarm to prevent the infrared alarm from falling. The movement of the round rod can contact with another swing rod and merge with the other swing rod when the round rod rotates, thereby increasing stability when touched in subsequent use, allowing the infrared alarm to be stably located near the scraper. By reducing the inspection frequency of inspection personnel, timely alarms can be issued to prevent major equipment damage.

[0017] 2. The scraper chain skipping protection device is connected to the limiting rod through the infrared alarm, and the limiting plate prevents the infrared alarm from moving to the right, which is convenient for subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the motion mechanism of the utility model;

[0020] Figure 3 For the utility model Figure 2 A magnified view of part A in FIG;

[0021] Figure 4 It is a top view of the round rod and the cross bar of the present utility model.

[0022] In the figure: 1. Support bracket; 2. Moving mechanism; 201. Infrared alarm; 202. Swing rod; 203. Round rod; 204. Ring; 205. Crossbar; 206. Vertical rod; 207. Moving rod; 208. Gear; 209. Threaded rod; 210. Rack; 211. Limiting rod; 212. Sleeve; 213. Sliding rod; 214. Support rod; 215. Rotating plate; 3. Fixed rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4 The utility model provides a technical solution: a scraper chain skipping protection device, comprising a support bracket 1, a moving mechanism 2 is provided at one end of the support bracket 1, and a fixing rod 3 is provided at the top of the moving mechanism 2.

[0025] The motion mechanism 2 includes an infrared alarm 201, and swing rods 202 are provided on both sides of the infrared alarm 201, and the swing rods 202 are in contact with the infrared alarm 201. A round rod 203 is provided on one side of the infrared alarm 201, and a ring 204 is provided on the outer side of one end of the round rod 203. The ring 204 is movably connected to the round rod 203, and a cross bar 205 is provided on one side of the ring 204. A vertical rod 206 is provided at the end of the cross bar 205 away from the ring 204, and a motion rod 207 is provided at the top of the vertical rod 206, and the motion rod 207 is fixedly connected to the cross bar 205 through the vertical rod 206. A gear 208 is provided below the motion rod 207, and there are two gears 208. A threaded rod 209 is provided on one side of each gear 208. One end of the threaded rod 209 extends to the interior of the infrared alarm 201 and is in contact with the infrared alarm 201. A thread is provided on the surface of one end of the round rod 203.

[0026] The swing rod 202 is movably connected to the support bracket 1 through a hinge. A rack 210 is provided above each gear 208, and the rack 210 is engaged with the gear 208. The rack 210 is fixedly connected to the motion rod 207. There are two swing rods 202, and a limiting rod 211 is provided between the two swing rods 202.

[0027] One end of the limiting rod 211 contacts the infrared alarm 201, and the other end of the limiting rod 211 is fixedly connected to the supporting bracket 1. A sleeve 212 is provided on one side of each gear 208, and the sleeve 212 is threadedly connected to the threaded rod 209. A sliding rod 213 is provided at the bottom of one end of the threaded rod 209.

[0028] The bottom end of the sliding rod 213 is movably connected to the swing rod 202 . A support rod 214 is provided on the other side of the gear 208 . A rotating plate 215 is fixedly provided on one end of the round rod 203 , and the rotating plate 215 is in contact with the circular ring 204 .

[0029] When working, first place the infrared alarm 201 between the two swing rods 202, and the swing rod 202 can be in contact with the infrared alarm 201 and the limiting rod 211, so as to prevent the infrared alarm 201 from moving to the right, which is convenient for subsequent operations. Then push the rotating plate 215 to make the ring 204 move at the same time. Since the ring 204 is fixedly connected to the vertical rod 206 through the horizontal rod 205, and the vertical rod 206 is fixedly connected to the motion rod 207, the motion rod 207 will move along with the ring 204. The round rod 203 moves together, which improves the efficiency of the work. When the rotating rod moves, the round rod 203 moves at the same time, so that one end of the round rod 203 is located on one side of the infrared alarm 201 and contacts the infrared alarm 201. Because one end surface of the round rod 203 is provided with a thread, when the thread contacts the other swing rod 202, the round rod 203 is rotated, which allows the round rod 203 to enter the inside of the other swing rod 202, so that the installation of the round rod 203 is completed, preventing the infrared alarm 201 from shaking and improving the stability. When the moving rod 207 moves, the rack 210 fixedly connected to the moving rod 207 moves at the same time. During the movement, the rack 210 gradually meshes with the gear 208. Since the gear 208 meshes with the rack 210, the gear 208 rotates. When the gear 208 rotates, the sleeve 212 fixedly connected to the gear 208 moves at the same time. Since the sleeve 212 is threadedly connected to the threaded rod 209, the rotation of the sleeve 212 will cause the threaded rod 209 to move and engage with the threaded rod 209. The fixedly connected sliding rod 213 moves at the same time, because the sliding rod 213 is movably connected to the swing rod 202, allowing the sliding rod 213 to move along the swing rod 202, and can enter the infrared alarm 201 through the movement of the threaded rod 209, which can prevent the infrared alarm 201 from falling and increase stability when touched during subsequent use. After the infrared alarm 201 is installed, when the scraper jumps the chain, it touches one end of the swing rod 202, causing the swing rod 202 to move and trigger the infrared alarm 201, thereby stopping the scraper.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A chain-jumping protection device for a scraper conveyor, comprising a support bracket (1), characterized in that: A motion mechanism (2) is provided at one end of the support bracket (1), and a fixing rod (3) is provided at the top of the motion mechanism (2); The motion mechanism (2) includes an infrared alarm (201), wherein swing rods (202) are provided on both sides of the infrared alarm (201), and the swing rods (202) are in contact with the infrared alarm (201), a round rod (203) is provided on one side of the infrared alarm (201), a circular ring (204) is provided on the outer side of one end of the circular rod (203), and the circular ring (204) is movably connected to the circular rod (203), a cross rod (205) is provided on one side of the circular ring (204), and a vertical rod (205) is provided on the end of the cross rod (205) away from the circular ring (204). Rod (206), a moving rod (207) is provided at the top end of the vertical rod (206), and the moving rod (207) is fixedly connected to the horizontal rod (205) through the vertical rod (206), and a gear (208) is provided below the moving rod (207), and the number of the gears (208) is two, and a threaded rod (209) is provided on one side of each gear (208), one end of the threaded rod (209) extends to the interior of the infrared alarm (201) and contacts the infrared alarm (201), and a thread is provided on the surface of one end of the round rod (203).

2. The scraper chain skipping protection device according to claim 1 is characterized in that: The swing rod (202) is movably connected to the support bracket (1) via a hinge, and a rack (210) is provided above each gear (208), and the rack (210) is meshed with the gear (208).

3. The scraper chain skipping protection device according to claim 2, characterized in that: The rack rail (210) is fixedly connected to the motion rod (207), the number of the swing rods (202) is two, and a limiting rod (211) is provided between the two swing rods (202).

4. The scraper chain skipping protection device according to claim 3 is characterized in that: One end of the limiting rod (211) contacts the infrared alarm (201), and the other end of the limiting rod (211) is fixedly connected to the supporting bracket (1).

5. The scraper chain skipping protection device according to claim 1 is characterized in that: A sleeve (212) is provided on one side of each gear (208), and the sleeve (212) is threadedly connected to the threaded rod (209). A sliding rod (213) is provided at the bottom of one end of the threaded rod (209).

6. The scraper chain skipping protection device according to claim 5, characterized in that: The bottom end of the sliding rod (213) is movably connected to the swing rod (202), and a support rod (214) is provided on the other side of the gear (208).

7. The scraper chain skipping protection device according to claim 1, characterized in that: A rotating plate (215) is fixedly provided at one end of the round rod (203), and the rotating plate (215) is in contact with the circular ring (204).

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